From when to get them to why they’re needed, experts explain why officials are recommending a COVID-19 vaccine booster. SUBSCRIBE to GMA's YouTube page: https://bit.ly/2Zq0dU5 VISIT GMA's homepage: https://www.goodmorningamerica.com SIGN UP to get the daily GMA Wake-Up Newsletter: https://gma.abc/2Vzcd5j FOLLOW GMA: TikTok: https://tiktok.com/@gma Facebook: https://facebook.com/GoodMorningAmerica Twitter: https://twitter.com/gma Instagram: https://instagram.com/GoodMorningAmerica #GMA #COVID19 #BoosterShots